Climbing tower



FIG. 1 is a front perspective view of a climbing tower of the presentembodiment;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front perspective view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings depict portions of the presentembodiment that form no part of the claimed design.

CLAIM The ornamental design for a climbing tower, as shown anddescribed.